Researchers at University of Minnesota created three experiments, one in which participants ate chocolate, another in which they ate carrots, and a third where they drank lemonade.

For the chocolate test, they were either told a specific way to eat it, or allowed to eat it whenever they wanted. When the participants ate the chocolate in a routine way, they reportedly enjoyed the chocolate more.

For the second experiment, researchers found that people enjoyed food the longer they waited to eat it. Finally, research found that when watching someone else make the lemonade, it doesn't taste any better. But making that lemonade yourself? It does (which explains why this reporter thinks she's a great cook while others think she under-seasons).

Researchers chalk up the taste differences to "intrinsic interest." A ritual or an involvement with the food "draw[s] people into what they're doing," rather than mindlessly devouring food, researchers say. So sing it loud and proud, birthday revelers.